Differences In Viscosity Research Articles

Variation in blood viscosity based on the potential cause of stroke of undetermined etiology

Background: This study investigated potential differences in blood viscosity (BV) among patients with stroke of undetermined etiology, negative evaluation (SUDn), specifically those with potential atherothrombosis (SUDn-AT) and those with possible embolism (SUDn-E).Methods: This single-center study employed a retrospective observational design. The participants were patients over 20 years old with the SUDn stroke subtype who were admitted within 5 days of symptom onset. These patients were categorized as SUDn-AT or SUDn-E. Patients in the SUDn-AT group had nonsignificant stenosis (<50%) of a major brain artery relevant to their symptoms and exhibited one or more signs of systemic atherosclerosis, including atherosclerosis of at least one major brain artery other than those clinically relevant, coronary artery disease, and/or peripheral artery disease. For the SUDn-E group, the SUDn criteria from the TOAST (Trial of Org 10172 in Acute Stroke Treatment) classification system were strictly applied.Results: The final analysis included 153 patients, with 104 (68%) classified as SUDn-E and the remaining 32% as SUDn-AT. Patients in the SUDn-AT group had a higher systolic BV (P=0.012) and diastolic BV (P=0.020) than those in the SUDn-E group. Multivariable logistic regression analysis revealed that age (odds ratio [OR], 1.08; 95% confidence interval [CI], 1.03–1.13; P=0.003), systolic BV (OR, 3.11; 95% CI, 1.41–6.85; P=0.005), and diastolic BV (OR, 1.08; 95% CI, 1.02–1.14; P=0.009) were associated with SUDn-AT.Conclusions: Within the TOAST system, two SUDn entities may be distinguishable, with potentially different underlying etiologies: atherothrombosis and embolic stroke of undetermined source.

Controlling the properties of metakaolin-based geopolymer/liquid organic waste emulsions: A rheological approach

Addressing a critical challenge in the nuclear industry, this study contributes to the effective and sustainable management of radioactive liquid organic waste by studying the effect of the viscosity ratio between the geopolymer grouts and the incorporated organic liquids (OL) on the efficiency of the solidification process. This research provides a practical pathway for industries to manage their liquid organic wastes more effectively, economically, and in alignment with regulatory standards. Three mineral oils are used to simulate OL wastes with an incorporation rate fixed at 30% vol. which represents a considerable proportion from an industrial point of view. To ensure adequate conditioning, the focus of this work is on the effect of the viscosity difference between geopolymer grouts and incorporated OL on the rheological, mechanical, and microstructural properties of geopolymer/OL composites. In total, 9 viscosity ratios, ranging from 0.4 to 430, are tested by varying the viscosity of both the geopolymer grouts and the incorporated OL. First, the results obtained show that OLs with a viscosity higher than 0.05 Pa.s can be efficiently encapsulated in MK-based geopolymer grouts, without requiring any surfactants. This study also confirms that the viscosity ratio is a key factor controlling the formulation and the rheological characteristics of fresh geopolymer/OL emulsions. Accordingly, increasing the geopolymer grout viscosity is an efficient technique for the preparation of geopolymer/OL composites with finely encapsulated OL droplets. In addition, based on the experimental results obtained in this study, a good correlation is established between the rheological parameters of the emulsions and the viscosity of the two phases (geopolymer and OL). This enables the proposition of empirical models that allow estimating the final rheological parameters of the fresh emulsions with an accuracy exceeding 90%. Finally, in terms of mechanical properties, this study confirms that MK-based geopolymers can safely be used for the solidification of a high amount of OL wastes.

Removal of hydrocarbon pollutants from aqueous media using hydrophobic cellulose-based adsorbents

The current work was carried out to eliminate hydrocarbon contaminants from oily wastewater. The alpha-cellulose-based aerogels were synthesized by sol-gel method and hydrophobic modification was applied with methyltrimethoxysilane (MTMS) through chemical vapor deposition (CVD). The FT-IR, SEM, and BET analyses were used to characterize the adsorbents. The effects of several factors such as hydrophobic modification, alpha-cellulose weight percentage, contact time, temperature, and pollutant type on adsorption were studied. The results revealed that the maximum adsorption capacities for engine oil, crude oil, and kerosene oil and mixture (with same proportions) were 28.4, 25.2, 22.8, and 25.7 (g/g), respectively. The difference in density and viscosity are the main reasons for different adsorption capacities. The adsorption capacity increased with increasing density, as well as in higher temperatures. Lower viscosity causes easier penetration, which is eventuated in increasing the adsorption capacity. However, after 40 °C with more viscosity decrease, the release rate increased and the adsorption capacity decreased. The adsorption equilibrium time for the three oil compounds is approximately 8 min. The adsorption kinetics follows the pseudo-second-order model, showing that chemisorption dominates. Also, the thermodynamic studies showed that the adsorption was endothermic and non-spontaneous. In addition, the synthesized adsorbent showed acceptable regeneration performance up to 5 cycles.

Thermomechanical Properties of High Oleic Palm Oil Assessed Using Differential Scanning Calorimetry, Texture Analysis, Microscopy, and Shear Rheology.

Standard Palm Oil (SPO) is widely used as a food ingredient partially due to its unique thermophysical properties. However, the American Heart Association recommends a saturated fat consumption of <5% of the caloric intake per day. The OxG Palm hybrid yields oil known as "palm oil with a higher content of oleic acid" (HOPO), with <35% SFA and >50% oleic acid. Characterizing novel high oleic oils is the starting point to find processes that can functionalize them such as oleogelation. This study compared the thermophysical properties of HOPO to SPO using Differential Scanning Calorimetry, shear rheology, polarized light microscopy, and texture analysis to characterize the differences between these oils. HOPO had a lower onset crystallization temperature (Δ7 °C) and its rheological behavior followed similar trends to SPO; however, large viscosity offsets were observed and were correlated to differences in crystallization temperatures. The maximum peak force of SPO was an order of magnitude higher than that of HOPO. Overall similar trends between the oils were observed, but differences in firmness, crystal morphology, and viscosity were not linearly correlated with the offset in crystallization temperature. This study quantified differences between these oils that will better enable industry to use HOPO in specific applications.

Simulation of a fully coupled 3D glacial isostatic adjustment – ice sheet model for the Antarctic ice sheet over a glacial cycle

Abstract. Glacial isostatic adjustment (GIA) has a stabilizing effect on the evolution of the Antarctic ice sheet by reducing the grounding line migration following ice melt. The timescale and strength of this feedback depends on the spatially varying viscosity of the Earth's mantle. Most studies assume a relatively long and laterally homogenous response time of the bedrock. However, the mantle viscosity is spatially variable, with a high mantle viscosity beneath East Antarctica and a low mantle viscosity beneath West Antarctica. For this study, we have developed a new method to couple a 3D GIA model and an ice sheet model to study the interaction between the solid Earth and the Antarctic ice sheet during the last glacial cycle. With this method, the ice sheet model and GIA model exchange ice thickness and bedrock elevation during a fully coupled transient experiment. The feedback effect is taken into account with a high temporal resolution, where the coupling time steps between the ice sheet and GIA model are 5000 years over the glaciation phase and vary between 500 and 1000 years over the deglaciation phase of the last glacial cycle. During each coupling time step, the bedrock elevation is adjusted at every ice sheet model time step, and the deformation is computed for a linearly changing ice load. We applied the method using the ice sheet model ANICE and a 3D GIA finite element model. We used results from a regional seismic model for Antarctica embedded in the global seismic model SMEAN2 to determine the patterns in the mantle viscosity. The results of simulations over the last glacial cycle show that differences in mantle viscosity of an order of magnitude can lead to differences in the grounding line position up to 700 km and to differences in ice thickness of the order of 2 km for the present day near the Ross Embayment. These results underline and quantify the importance of including local GIA feedback effects in ice sheet models when simulating the Antarctic ice sheet evolution over the last glacial cycle.

Effect of spherical alumina crystalline phase content and particle size distribution polydispersity on the properties of silicone rubber composites

High loading of thermally conductive fillers for enhancing thermal conductivity (TC) conflicts with proper rheological viscosity in excellent thermal interface materials (TIMs), which remains a significant challenge. The physical properties (crystalline phase, particle size and distribution, etc.) of thermally conductive filler are the base of the high load in the polymer. In this paper, the α-phase content of spherical aluminum (S–Al2O3) increases after calcination, leading to the viscosity of composites increasing sharply but was only slightly improved for the TC. The polydispersity of the S–Al2O3 particle size distribution was regulated to fill the silicone rubber under the premise of controlling the same average particle size, crystalline phase content and filling amount. Results indicated the viscosity of the sample with a polydispersity value of 0.74 was 41.21 Pa s at a shear rate of 10 s−1 at 66 vol%, which was 87.7% lower than that of the sample with a polydispersity value of 0.48. And the viscosity difference became more prominent with the increasing filling amount. However, the difference in TC between several groups of samples with different polydispersity is insignificant at 60–67 vol%, which provides practical, theoretical guidance for achieving controllable viscosity and developing low-viscosity TIMs in the processing process.

The effect of Navier slip on the rheology of a dilute two-dimensional suspension of plate-like particles

Through boundary integral simulations and asymptotic analysis, we investigate the effect of a finite Navier slip length on the rheological proprieties of a dilute two-dimensional suspension of plate-like particles in the creeping flow limit. Specifically, we study the effects of Navier slip, particle thickness and Péclet number on the effective shear viscosity and average normal stress difference of an isolated two-dimensional plate-like particle in an unbounded shear flow field. We find that Navier slip induces a significant reduction in the effective viscosity and increases the average normal stress difference. The effect of slip becomes more enhanced as the thickness of the particle decreases and as the Péclet number increases. Remarkably, the analysis suggests that it is theoretically possible for a dilute suspension of slip plate-like particles at high Péclet numbers to have a shear viscosity smaller than that of the suspending fluid.

Protocells Capable of Generating a Cytoskeleton-like Structure from intracellular Membrane-active Artificial Organelles.

The intricate nature of eukaryotic cells with differently viscous intracellular compartments provides (membrane-active) enzymes to trigger time- and concentration-dependent processes in the intra-/extracellular matrix. Herein, we capitalize on membrane-active artificial organelles (AOs) to develop fluidic and stable proteinaceous membrane-based protocells. AOs in protocells induce the self-assembly of oligopeptides into an artificial cytoskeleton that underline their influence on the structure and functionality of protocells. A series of microscopical tools is used to validate the intracellular assembly and distribution of cytoskeleton, the changing protocells morphology, and AOs inclusion within cytoskeletal growth. Thus, the dynamics, diffusion and viscosity of intracellular components in the presence of cytoskeleton are evaluated by fluorescence tools and enzymatic assay. Membrane-active alkaline phosphatase in polymersomes as AOs fulfills the requirements of biomimetic eukaryotic cells to trigger intracellular environment, mobility, viscosity, diffusion and enzymatic activity itself as well as high mechanical stability and high membrane fluidity of protocells. Thus membrane-active AOs in protocells thoroughly provide a variable reaction space in a changing intracellular environment and underline their regulatory role in the fabrication of complex protocell architectures and functions. This study demonstrates an important contribution to effective biomimicry of cell-like structures, shapes and functions.

Mechanical microscopy of cancer cells: TGF-β induced epithelial to mesenchymal transition corresponds to low intracellular viscosity in cancer cells.

Viscosity is an essential parameter that regulates bio-molecular reaction rates of diffusion-driven cellular processes. Hence, abnormal viscosity levels are often associated with various diseases and malfunctions like cancer. For this reason, monitoring intracellular viscosity becomes vital. While several approaches have been developed for in vitro and in vivo measurement of viscosity, analysis of intracellular viscosity in live cells has not yet been well realized. Our research introduces a novel, natural frequency-based, non-invasive method to determine the intracellular viscosity in cells. This method can not only efficiently analyze the differences in intracellular viscosity post modulation with molecules like PEG or glucose but is sensitive enough to distinguish the difference in intra-cellular viscosity among various cancer cell lines such as Huh-7, MCF-7, and MDAMB-231. Interestingly, TGF-β a cytokine reported to induce epithelial to mesenchymal transition (EMT), a feature associated with cancer invasiveness resulted in reduced viscosity of cancer cells, as captured through our method. To corroborate our findings with existing methods of analysis, we analyzed intra-cellular viscosity with a previously described viscosity-sensitive molecular rotor-based fluorophore-TPSII. In parity with our position sensing device (PSD)-based approach, an increase in fluorescence intensity was observed with viscosity enhancers, while, TGF-β exposure resulted in its reduction in the cells studied. This is the first study of its kind that attempts to characterize differences in intracellular viscosity using a novel, non-invasive PSD-based method.

Isolation and Purification of Bacterial Extracellular Vesicles from Human Feces Using Density Gradient Centrifugation.

Bacterial extracellular vesicles (BEVs) are nanovesicles derived from bacteria that play an active role in bacteria-bacteria and bacteria-host communication, transferring bioactive molecules such as proteins, lipids, and nucleic acids inherited from the parent bacteria. BEVs derived from the gut microbiota have effects within the gastrointestinal tract and can reach distant organs, resulting in significant implications for physiology and pathology. Theoretical investigations that explore the types, quantities, and roles of BEVs derived from human feces are crucial for understanding the secretion and function of BEVs from the gut microbiota. These investigations also necessitate an improvement in the current strategy for isolating and purifying BEVs. This study optimized the isolation and purification process of BEVs by establishing two density gradient centrifugation (DGC) modes: Top-down and Bottom-up. The enriched distribution of BEVs was determined in fractions 6 to 8 (F6-F8). The effectiveness of the approach was evaluated based on particle morphology, size, concentration, and protein content. The particle and protein recovery rates were calculated, and the presence of specific markers was analyzed to compare the recovery and purity of the two DGC modes. The results indicated that the Top-down centrifugation mode had lower contamination levels and achieved a recovery rate and purity similar to that of the Bottom-up mode. A centrifugation time of 7 h was sufficient to achieve a fecal BEV concentration of 108/mg. Apart from feces, this method could be applied to other body fluid types with proper modification according to the differences in components and viscosity. In conclusion, this detailed and reliable protocol would facilitate the standardized isolation and purification of BEVs and thus, lay a foundation for subsequent multi-omics analysis and functional experiments.

Functional and Sensory Quality of Complementary Food Blended with Moringa Leaf Powder

Functional and Sensory Quality of Complementary porridge made from Moringa Leaf Powder blended with Pearl millet, Orange-Fleshed Sweet Potato, Dateswas evaluated using standard methods. The Pearl millet grain flour, Moringa leaf powder and dates were blended in ratios of 90:2.5:7.5 [PmMD1], 95:2.5:2.5 [PmMD2], 88:3:9 [PmMD3] respectively. Also, Pearl millet grain flour, Moringa leaf powder and Orange fleshed sweet potato were blended in ratios of 95.5:2:2.5 [PmMP1], 88:2:10 [PmMP2], 95:2.5:2.5 [PmMP3], respectively. The ratios were calculated based on Recommended Daily Allowances (RDA) for children aged 1-2 years. Control sample was blended with Pearl millet, Dates and Orange fleshed sweet potato in a ratio of 50:15:35 [PmDP], respectively. A significant difference (p&lt;0.05) in bulk density and viscosity were observed due to the difference in amounts of Orange fleshed sweet potato and Dates. No significant difference (p&gt;0.05) in water absorption capacity was observed. Sensory evaluation showed significant difference (p&lt;0.05) between all samples and in all sensory parameters namely aroma, taste, color and overall acceptability. The sample PmDP was the most accepted in terms of colorwhereas PmMP2 was the most accepted in terms of aroma, taste and overall acceptability. Quantitative descriptive analysis was conducted to determine the intensity of color, aroma, sweetness, thickness and grittiness among the samples. No significant difference (p&gt;0.05) in the intensity of color, aroma, thickness and grittiness. There was a significant difference in the intensity of sweetness among the samples (p&lt;0.05) and the mean values ranged from 4.2-1.9. The control sample [PmDP] had the highest value in sweetness intensity as it contained Orange fleshed sweet potato and Dates which are both of a sweet nature. A PCA biplot was drawn to indicate the association between the samples and the attributes. All ingredients used in this study had a different contribution in the functional quality of the porridge together with the sensory quality.Orange fleshed sweet potato and Dates generally improved the sensory quality of the porridge samples.

Coextrusion of Reaction‐Bonded Carbides by Robocasting

Coextrusion by robocasting is a suitable process for fabricating multimaterial ceramic structures. Herein, the robocasting process is used to fabricate core–shell structures, combined with subsequent liquid silicon infiltration (LSI). Thus, reaction‐bonded silicon carbide (RBSC), reaction‐bonded boron carbide (RBBC), and reaction‐bonded silicon–boron carbide composites are produced. The LSI process offers the possibility to circumvent high temperatures and pressures used in traditional fabrication. Pastes with high solid loading and necessary carbon content are used in order to combine the robocasting with the subsequent LSI process. The influence of the paste rheology on the sample fabrication of multimaterial core–shell structures of reaction‐bonded carbides is investigated. The key rheological data, such as the viscosities of the combined pastes, are correlated with the observations from the microstructural investigation using scanning electron microscopy. A correlation between the difference in viscosity and the core geometry can be established. Crack formation in the material combination of RBSC and RBBC is found and compared with layered multimaterial structures of reaction‐bonded carbides. Residual stresses, which can be used to explain the crack formation, are investigated using Raman spectroscopy.

The Influence of Injection Temperature and Pressure on Pattern Wax Fluidity

In the investment casting process, the pattern made of wax is obtained in a die for further formation of a shell mold. The problem of die-filling by pattern wax is significant because it influences the quality of the final casting. This work investigates three commercial pattern waxes’ fluidity with a newly developed injection fluidity test. It was shown that the fluidity of waxes increased with increasing injection temperature and pressure, and the simultaneous increase in temperature and pressure gives a much more significant enhancement of fluidity than an increase in temperature or pressure separately. The rheological behavior of the waxes was also investigated at different temperatures using a rotational viscosimeter, and temperature dependences of waxes’ dynamic viscosity were determined. It was shown that wax viscosity is increased more than ten times with decreasing temperature from 90 to 60 °C. A good correlation between wax fluidity and its viscosity is observed, which is different from metallic alloys, where the solidification behavior is more critical. The difference in wax flow behavior in comparison with metallic melts is associated with the difference in dynamic viscosity, which for investigated waxes and metallic melts is 3000–27,000 mPa·s and 0.5–6.5 mPa·s, respectively. The difference in investigated filled waxes’ fluidity is observed, which can be associated with the type and amount of filler. The twice-increasing fraction of cross-linked polystyrene decreases fluidity twice. At the same time, terephthalic acid has a minor influence on wax fluidity.

Rheological Properties of Warm Mixed Asphalt

Adding a warm mixing agent to asphalt can lower the working temperature of asphalt construction by 20–40 °C. It is difficult to evaluate the impact of the existing warm mixed agent on the quality and effect of asphalt due to its wide variety. In this study, 70 # asphalt and 3 kinds of surfactants were selected to prepare warm mix asphalt. The result of different warm mix agents on the rheological properties of asphalt was evaluated through a rheological experiment. The results explained that the warm mixing agent could lower the Brookfield viscosity of asphalt. With the increase in asphalt temperature, the viscosity difference of different types of asphalt binder becomes smaller and smaller. A warm mixing agent will also reduce the creep stiffness of asphalt. In the multiple stress creep recovery test, the average recovery rate of asphalt and the average value of irrecoverable creep compliance have obvious stress dependence.

Techno-economical optimization of water-alternating-CO2/dimethyl ether process for enhanced oil recovery

The use of CO2 to improve oil recovery has the disadvantage of reduced sweep efficiency due to the large difference in density and viscosity between oil and CO2. Overcoming these drawbacks, the use of dimethyl ether (DME) is known to be more effective than CO2 in improving oil recovery. In this study, a CO2-DME mixed solvent, is thoroughly investigated by developing a compositional model. The oil recovery of a CO2-DME mixed solvent has been examined in terms of sweep efficiency and displacement efficiency by comparing CO2-water-alternating-gas (WAG) and CO2-DME WAG. According to the results from compositional simulation, the highest DME content investigated resulted in a 66.4% lower viscous gravity number and a 26.6% increase in sweep efficiency compared to CO2 WAG. Minimum miscible pressure (MMP) and interfacial tension (IFT) were reduced by 30.1 and 97.5%, respectively, significantly improving the mobility of the oil. As a result, the amount of oil remaining in the reservoir decreased by 40.7%, and oil recovery increased by 31%. An economic evaluation considering optimized injection design and reuse of recovered DME showed a 13% improvement in net present value (NPV) of CO2-DME WAG over CO2 WAG.

Size-dependent viscosity of silica optical fiber under high temperature

Viscosity of optical fiber plays an important role in high temperature applications in harsh environments. A size-dependent viscosity phenomenon of silica optical fiber under high temperature is observed by the stretching method with in-fiber regenerated fiber Bragg gratings (RFBGs). Higher viscosity is derived from optical fiber with larger diameters. The mechanisms of this size-dependent relationship of high temperature viscosity of silica optical fiber are discussed, and the difference in fictive temperature of silica optical fibers is considered as the mainly contribution. An equivalent fictive temperature of optical fiber at a metastable structure state is used to explain the difference in equilibrium viscosity. Then the relationship between equilibrium viscosity and fictive temperature for silica optical fiber at 1000 °C is derived.

Dynamics of a Model Microswimmer in the Vicinity of a Liquid Droplet

Microorganisms in viscous fluids are known to exhibit complex swimming motions in the presence of boundaries. In this study, we investigate the dynamics of microswimmers near a drop with a soft, deformable, penetrable surface. Three distinct swimming modes, including penetrating, bouncing, and sliding, are observed when the microswimmers approach the surface of the drop. The critical trapping angle and the influence of the radius of the droplet are analyzed in detail, showing a correlation with the swimming strength. The effect of viscosity differences between the fluids inside and outside the drop is also studied. Our findings contribute to a deeper understanding of the dynamics of microswimmers in complex fluid systems and may have implications for physiological and biological phenomena, such as oil-microbe interactions and marine ecosystems.

Comprehensive study of MWCNT and CuO/SAE50 hybrid nanofluid with experimental method and response surface methodology and introducing this nanofluid to the industry

In this study, rheological behavior of hybrid nanofluid (HNF) with MWCNT(35%)-CuO (65%) nanoparticles (NPs) in SAE50 base oil was investigated by response surface methodology (RSM) and laboratory methods. Viscosity of HNF samples with solid volume fractions of SVF = 0.0625% to 1% was measured at temperatures between (T = 25–50 °C) and shear rates in the range of SR = 666.5–7998 s−1 using a Brookfield viscometer. The behavior of HNF shows non-Newtonian behavior in terms of relation between SR and shear stress (SS) in all SVFs. The relative viscosity at T = 30 °C and SVF = 1% has the highest value and is equal to + 22%. Viscosity changes in terms of temperature show that viscosity decreases with increasing temperature. The maximum viscosity difference at T = 25 °C is equal to −13.7 (-2.97). Also, to save time and reduce economic costs and check the accuracy and correctness of experimental data, it was predicted by RSM. Modeling with a three-variable mathematical relationship including T, SVF, and SR with R2 = 0.9986 coefficient was presented. After checking the viscosity with independent variables, it was determined that T effect is greater than other parameters on viscosity. Comparison results between experimental data and the proposed data show a high agreement between the predicted values.

Impacting Factors of Changes in Dynamic Viscosity and Interfacial Tension of Wood Xylem Sap

The growth of trees is inseparable from the water transpiration in the xylem. To explore the mechanism of sap rising in the xylem, the monthly variation of the dynamic viscosity and interfacial tension of the xylem sap of different tree species and their impacting factors were analyzed. In this experiment, the dynamic viscosity and interfacial tension of the xylem sap of poplar and metasequoia were measured within one year, as well as the sap velocity of poplar. Gas chromatography–mass spectrometry and atomic absorption spectroscopy were used to detect the organic components and inorganic cations of the xylem sap of poplar and metasequoia. By analyzing the influence of organic components and the inorganic cation concentration of xylem sap on the dynamic viscosity and interfacial tension of xylem sap, this study revealed that the dynamic viscosity and the interfacial tension of poplar and metasequoia samples in different months changed in basically the same manner. However, the dynamic viscosity and the interfacial tension of the metasequoia samples were generally higher than those of the poplar samples. The dynamic viscosity of the xylem sap had an obvious exponential relationship with temperature, while the interfacial tension of the xylem sap had an inconspicuous linear relationship with temperature. In addition, disparate xylem structures of the broad-leaved tree poplar and the coniferous tree metasequoia led to different concentrations of organic components and inorganic cations in their xylem sap, which made a difference in the dynamic viscosity and interfacial tension between poplar and metasequoia samples.

Fully bio‐based thermoset composites from UV curable prepregs: Vegetable oil acrylate impregnated hemp nanopaper

AbstractModern thermoset composite matrices are primarily prepared from petroleum‐based plastics, while reinforcements commonly consist of non‐renewable and energy‐demanding glass and carbon fibers. Herein, a non‐chemically treated hemp fiber‐reinforced composite was prepared from bio‐based components: hemp nanopaper (NP) and acrylated epoxidized soybean oil (AESO) or acrylated rapeseed oil (ARO). A commercial‐grade AESO was selected as a reference and compared to ARO prepared in a one‐step synthesis. The impregnation process was examined in detail by studying the impact of surface wetting, temperature, and vacuum on the composite structure. ARO has excellent fiber surface wettability, showing initial contact angles between 46.5° and 48.2° on hemp NP. A more than 10‐fold difference in viscosity between AESO and ARO was observed. ARO composite with 50 wt% hemp loading achieved a Young's modulus of 1.3 GPa, a tensile strength of 26 MPa, and a storage modulus of 4.4 GPa (at 20°C). The results are supplemented by scanning electron microscope analysis of composite morphology via liquid nitrogen fracture and tensile failure analysis, that is, fractography. Dielectric spectroscopy analysis shows that composites have the potential to replace epoxy/paper composite insulators.